Year Dollars 1992-01-01 24697898 1997-01-01 27476090 2002-01-01 16105993 2003-01-01 17744353 2004-01-01 23998609 2005-01-01 27678235 2006-01-01 31678295 2007-01-01 36220953 2008-01-01 49953952 2009-01-01 38233356 2010-01-01 40869694 2011-01-01 42834428 2012-01-01 37857706 2013-01-01 35944129 2014-01-01 37797856 2015-01-01 45149255 2016-01-01 28683632